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Move the mail definitions from the driver core to a dedicated file.
The mails that are exchanged between driver and firmware are not stable
across firmware versions. This is in preparation to make the driver able
to handle multiple firmware version by having dedicated code for
handling mails.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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As we know which buffers are processed by the codec from the address in
the ENCODE_FRAME response, we can queue multiple buffers in the firmware
and retrieve the buffer from the response of the firmware. This enables
the firmware to use the internal scheduling the codec and avoids round
trips through the driver when fetching the next frame.
Remove buffers that have been passed to the firmware from the m2m buffer
queue and put them into a shadow queue for tracking the buffer in the
driver. When we receive a ENCODE_FRAME response from the firmware, get
the buffer from the shadow queue and finish the buffer.
Furthermore, it is necessary to finish the job straight after passing
the buffer to the firmware to allow the V4L2 framework to send further
buffers to the driver.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The PUT_STREAM_BUFFER and ENCODE_FRAME request have fields that allow to
pass arbitrary 64 bit values through the firmware to the ENCODE_FRAME
response. Use these values to verify that the buffers when finishing the
frame are actually the same buffers that have been sent for encoding a
frame.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The peak bitrate must not be smaller than the configured bitrate. Update
the other control whenever one of the controls changes to reflect this
dependency.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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There is no need to copy the bitrate mode to a field in the channel and
the value can be read directly from the control.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The V4L2_CID_MPEG_VIDEO_FRAME_RC_ENABLE control allows to enable/disable
rate control on a channel. When rate control is disabled, the driver
shall use constant QP, which are set by the application. Also implement
the controls for configuring the QP.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The allegro dvt codec adjust the encoding speed according to a
configured frame rate. Furthermore, the frame rate is written into the
coded stream.
Ensure that the coded video data has the correct frame rate by
implementing s_parm for setting the frame rate from user space.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The driver instructs the firmware to leave some space space in front of
the coded frame data for SPS/PPS data. If the driver receives an IDR, it
writes the SPS/PPS into that free space and fills the rest with filler
data. However, if there is no additional data, the driver can use the
plane offset to skip this space instead of adding filler data.
As the size of the SPS/PPS is only available after writing it, keep the
filler data between the SPS/PPS and the coded frame data.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The driver uses structs to parse the responses from the VCU and expects
a certain size of the responses. However, the size and format of the
mails is not stable across firmware versions. Therefore, print a warning
if the size does not match the expected size to warn the user that
strange things might happen.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The mcu and the codec use 32 bit addresses which are sent via the
firmware messages. Add helper functions for this address calculation to
make it obvious which address is used in the message.
As the mcu and the codec have a limited address space, print warnings if
the addresses are outside the respective address space.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The Zynq UltraScale+ Devices Register Reference states that the WAKEUP
bit "should be set to 0 after the MCU sleep status bit gets back to 0."
If this is not done, the mcu is not going to sleep on reset and fail the
reset.
Set WAKEUP to 0 before triggering a reset to make sure that the reset is
successful.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The cpb_size is given in kilobytes, but the bitrate is given in bits per
second. Therefore, the calculation of the initial removal delay and the
cpb size for the firmware were wrong.
Convert the bitrate to kilobytes before calculating the cpb size in 90
kHz units for sending it to the firmware. Also reuse the result for the
initial removal delay, to make it obvious that we are setting the
initial removal delay to the maximum value.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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When creating a channel, freq_idr defines the number of frames between
IDR frames in the coded stream. In V4L2, the period between IDR frames
shall be taken from the GOP_SIZE control.
Set the IDR frame frequency equal to the GOP size and let every GOP
start with an IDR frame.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The subframe_latency and lda_control_mode fields directly follow
freq_golden_ref field and there is no unknown field in between. The
unknown field it at the end of the message.
Reorder the fields accordingly. This further allows to drop the hard
coded value from the lda_control_mode field and set the mode to 0.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The gop_length field is actually only u16 and there are two more u8
fields in the message:
- the number of consecutive b-frames
- frequency of golden frames
Fix the message and thus fix the configuration of the GOP length.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Only negative values are actual errors and positive values are used for
warnings. Warnings should not fail the encoding process.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The codec firmware uses error codes to report errors during the
configuration of a channel or while encoding a frame. Translate them
into human readable strings for debugging.
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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Since commit cc62c74749a3 ("media: allegro: add missed checks in
allegro_open()") the allegro device does provide v4l2 controls to user
space anymore. The reason is that v4l2_fh_init() initializes
fh->ctrl_handler to vdev->ctrl_handler, which invalidates the previous
driver override of the ctrl_handler.
Therefore, v4l2_fh_init() must be called before the driver overrides the
fh->ctrl_handler with its own handler.
Move the initialization of the fh back to the top, as the initialization
does not does not need to be reverted on errors, but it is enough to
free the channel.
Fixes: cc62c74749a3 ("media: allegro: add missed checks in allegro_open()")
Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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This function is no longer used by other drivers, so it can be
made static.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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This argument refers to a stable name for an HDMI port, mostly i915
(ACPI) specific. Since we'll be introducing a more generic 'name' argument
as well later, rename this now to avoid confusion.
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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This patch makes use of to_vpfe() to get a pointer to vpfe_device
Signed-off-by: Lad Prabhakar <prabhakar.csengg@gmail.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The new format is called V4L2_PIX_FMT_Y14. Like V4L2_PIX_FMT_Y10 and
V4L2_PIX_FMT_Y12 it is stored in two bytes per pixel but has only two
unused bits at the top.
Signed-off-by: Daniel Glöckner <dg@emlix.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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The formats added by this patch are:
V4L2_PIX_FMT_SBGGR14
V4L2_PIX_FMT_SGBRG14
V4L2_PIX_FMT_SGRBG14
V4L2_PIX_FMT_SRGGB14
Signed-off-by: Jouni Ukkonen <jouni.ukkonen@intel.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
[dg@emlix.com: rebased onto current media_tree]
Signed-off-by: Daniel Glöckner <dg@emlix.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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When sja1105_init_mii_settings iterates over the port list, it prints
this message for disabled ports, because they don't have a valid
phy-mode:
[ 4.778702] sja1105 spi2.0: Unsupported PHY mode unknown!
Suggested-by: Andrew Lunn <andrew@lunn.ch>
Suggested-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next
Johan Hedberg says:
====================
pull request: bluetooth-next 2020-03-19
Here's the main bluetooth-next pull request for the 5.7 kernel.
- Added wideband speech support to mgmt and the ability for HCI drivers
to declare support for it.
- Added initial support for L2CAP Enhanced Credit Based Mode
- Fixed suspend handling for several use cases
- Fixed Extended Advertising related issues
- Added support for Realtek 8822CE device
- Added DT bindings for QTI chip WCN3991
- Cleanups to replace zero-length arrays with flexible-array members
- Several other smaller cleanups & fixes
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
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Driver reclaims descriptors in much smaller batches, even if hardware
indicates more to reclaim, during backpressure. So, fix the check to
restart the Txq during backpressure, by looking at how many
descriptors hardware had indicated to reclaim, and not on how many
descriptors that driver had actually reclaimed. Once the Txq is
restarted, driver will reclaim even more descriptors when Tx path
is entered again.
Fixes: d429005fdf2c ("cxgb4/cxgb4vf: Add support for SGE doorbell queue timer")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In Certain QCOM SoCs like ipq8064, apq8064, msm8960, msm8974
that has KRAIT processors the voltage/current value of each OPP
varies based on the silicon variant in use.
The required OPP related data is determined based on
the efuse value. This is similar to the existing code for
kryo cores. So adding support for krait cores here.
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
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commit 7c3bebc3d868 ("cxgb4: request the TX CIDX updates to status page")
reverted back to getting Tx CIDX updates via DMA, instead of interrupts,
introduced by commit d429005fdf2c ("cxgb4/cxgb4vf: Add support for SGE
doorbell queue timer")
However, it missed reverting back several code changes where Tx CIDX
updates are not explicitly requested during backpressure when using
interrupt mode. These missed changes cause slow recovery during
backpressure because the corresponding interrupt no longer comes and
hence results in Tx throughput drop.
So, revert back these missed code changes, as well, which will allow
explicitly requesting Tx CIDX updates when backpressure happens.
This enables the corresponding interrupt with Tx CIDX update message
to get generated and hence speed up recovery and restore back
throughput.
Fixes: 7c3bebc3d868 ("cxgb4: request the TX CIDX updates to status page")
Fixes: d429005fdf2c ("cxgb4/cxgb4vf: Add support for SGE doorbell queue timer")
Signed-off-by: Rahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove atomic64_add from veth_xdp_xmit hotpath and rely on
xdp_xmit_err/xdp_tx_err counters
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Introduce xdp_xmit counter in order to distinguish between XDP_TX and
ndo_xdp_xmit stats. Introduce the following ethtool counters:
- rx_xdp_tx
- rx_xdp_tx_errors
- tx_xdp_xmit
- tx_xdp_xmit_errors
- rx_xdp_redirect
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Distinguish between rx_drops and xdp_drops since the latter is already
reported in rx_packets. Report xdp_drops in ethtool statistics
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Introduce xdp_tx, xdp_redirect and rx_drops counters in veth_stats data
structure. Move stats accounting in veth_poll. Remove xdp_xmit variable
in veth_xdp_rcv_one/veth_xdp_rcv_skb and rely on veth_stats counters.
This is a preliminary patch to align veth xdp statistics to mlx, intel
and marvell xdp implementation
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Move xdp stats in veth_stats data structure. This is a preliminary patch
to align xdp statistics to mlx5, ixgbe and mvneta drivers
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds support for configuring the RGMII skew delays in Rx and
Tx. The Rx and Tx skews are set based on the interface mode. By default
their configuration is set to the default value in hardware (0.2ns);
this means the driver do not rely anymore on the bootloader
configuration.
Then based on the interface mode being used, a 2ns delay is added:
- RGMII_ID adds it for both Rx and Tx.
- RGMII_RXID adds it for Rx.
- RGMII_TXID adds it for Tx.
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch adds support for connecting VSC8584 PHYs to the MAC using
RGMII.
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Andrew reported:
After a number of network port link up/down changes, sometimes the switch
port gets stuck in a state where it thinks it is still transmitting packets
but the cpu port is not actually transmitting anymore. In this state you
will see a message on the console
"mtk_soc_eth 1e100000.ethernet eth0: transmit timed out" and the Tx counter
in ifconfig will be incrementing on virtual port, but not incrementing on
cpu port.
The issue is that MAC TX/RX status has no impact on the link status or
queue manager of the switch. So the queue manager just queues up packets
of a disabled port and sends out pause frames when the queue is full.
Change the LINK bit to reflect the link status.
Fixes: b8f126a8d543 ("net-next: dsa: add dsa support for Mediatek MT7530 switch")
Reported-by: Andrew Smith <andrew.smith@digi.com>
Signed-off-by: René van Dorst <opensource@vdorst.com>
Reviewed-by: Vivien Didelot <vivien.didelot@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Offload action skbedit priority when keyed to a flower classifier. The
skb->priority field in Linux is very generic, so only allow setting the
bottom 8 priorities and bounce anything else.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The QOS_ACTION is used for manipulating the QoS attributes of a packet.
Add the corresponding defines and helpers, in particular for the
switch_priority override.
Signed-off-by: Petr Machata <petrm@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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it will check the return value of dwmac_dma_reset() in the
stmmac_init_dma_engine() function and report an error if the
return value is not zero. so don't need check here.
Signed-off-by: Dejin Zheng <zhengdejin5@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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i.MX8/8X SCU MU is dedicated for communication between SCU and Cortex-A
cores from hardware design, and could not be reused for other purpose.
Per i.MX8/8X Reference mannual, Chapter "12.9.2.3.2 Messaging Examples",
Passing short messages: Transmit register(s) can be used to pass
short messages from one to four words in length. For example, when
a four-word message is desired, only one of the registers needs to
have its corresponding interrupt enable bit set at the receiver side;
the message’s first three words are written to the registers whose
interrupt is masked, and the fourth word is written to the other
register (which triggers an interrupt at the receiver side).
i.MX8/8X SCU firmware IPC is an implementation of passing short
messages. But current imx-mailbox driver only support one word
message, i.MX8/8X linux side firmware has to request four TX
and four RX to support IPC to SCU firmware. This is low efficent
and more interrupts triggered compared with one TX and
one RX.
To make SCU MU work,
- parse the size of msg.
- Only enable TR0/RR0 interrupt for transmit/receive message.
- For TX/RX, only support one TX channel and one RX channel
- For RX, support receive msg larger than 4 u32 words.
- Support 6 channels, TX0/RX0/RXDB[0-3], not support TXDB.
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Add imx_mu_generic_tx for data send and imx_mu_generic_rx for interrupt
data receive.
Pack original mu chans related code into imx_mu_init_generic
Add tx/rx/init hooks into imx_mu_dcfg
With these, it will be a bit easy to introduce i.MX8/8X SCU type
MU dedicated to communicate with SCU.
Reviewed-by: Oleksij Rempel <o.rempel@pengutronix.de>
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Commit a5afc1678044 ("net: phy: mscc: add support for VSC8584 PHY")
introduced a call to 'phy_write' storing its return value to a variable
called 'ret'. But 'ret' never was checked for a possible error being
returned, and hence was not used at all. Fix this by checking the return
value and exiting the function if an error was returned.
As this does not fix a known bug, this commit is mostly cosmetic and not
sent as a fix.
Signed-off-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove including <linux/version.h> that don't need it.
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Remove .owner field if calls are used which set it automatically
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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After implement flush, client can flush the executing
command buffer or abort the still waiting for event
command buffer, so controller do not need to implement
atomic_exe feature. remove it.
Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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For client driver which need to reorganize the command buffer, it could
use this function to flush the send command buffer.
If the channel doesn't be started (usually in waiting for event), this
function will abort it directly.
Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Handle 'cmpl_pool' dma memory allocation failure.
Fixes: a9a9da47f8e6 ("mailbox: no need to check return value of debugfs_create functions")
Signed-off-by: Rayagonda Kokatanur <rayagonda.kokatanur@broadcom.com>
Reviewed-by: Tyler Hicks <tyhicks@linux.microsoft.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Allwinner sun6i, sun8i, sun9i, and sun50i SoCs contain a hardware
message box used for communication between the ARM CPUs and the ARISC
management coprocessor. This mailbox contains 8 unidirectional
4-message FIFOs.
Add a driver for it, so it can be used with the Linux mailbox framework.
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Samuel Holland <samuel@sholland.org>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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Since snprintf() returns the would-be-output size instead of the
actual output size, the succeeding calls may go beyond the given
buffer limit. Fix it by replacing with scnprintf().
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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In this function,we don't need dev_err() message because when something
goes wrong,platform_get_irq() and devm_platform_ioremap_resource() have
print an error message itself, so we should remove duplicate dev_err().
Signed-off-by: Tang Bin <tangbin@cmss.chinamobile.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
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